<template>
	<header class="header">
		<!-- 头部的第一行 -->
		<div class="top">
			<div class="container">
				<div class="loginList">
					<p>尚品汇欢迎您！</p>
					<!-- 登录后才能呈现的元素 -->
					<p v-show="info.id">
						<span>{{info.nickName}}</span>
						<a class="register" @click="handleLogout">退出登录</a>
						<router-link to="/test" class="register">测试</router-link>
					</p>
					<!-- 不登录才能呈现的元素 -->
					<p v-show="!info.id">
						<span>请</span>
						<router-link to="/login">登录</router-link>
						<router-link to="/register" class="register">免费注册</router-link>
					</p>
				</div>
				<div class="typeList">
					<router-link to="/center">我的订单</router-link>
					<router-link to="/cart">我的购物车</router-link>
					<a href="###">我的尚品汇</a>
					<a href="###">尚品汇会员</a>
					<a href="###">企业采购</a>
					<a href="###">关注尚品汇</a>
					<a href="###">合作招商</a>
					<a href="###">商家后台</a>
				</div>
			</div>
		</div>
		<!--头部第二行 搜索区域-->
		<div class="bottom">
			<h1 class="logoArea">
				<router-link class="logo" title="尚品汇" to="/home">
					<img src="./images/logo.png" alt="">
				</router-link>
			</h1>
			<div class="searchArea">
				<form class="searchForm">
					<input @keydown.enter.prevent="toSearch" v-model="keyword" type="text" id="autocomplete" class="input-error input-xxlarge" />
					<button class="sui-btn btn-xlarge btn-danger" type="button" @click="toSearch">搜索</button>
				</form>
			</div>
		</div>
	</header>
</template>

<script>
	import { mapState } from 'vuex'
	export default {
		name: 'Header',
		data() {
			return {
				keyword:undefined //用户输入的搜索关键词
			}
		},
		computed:{
			...mapState({
				info:state => state.user.info
			})
		},
		methods:{
			//点击搜索按钮的回调
			toSearch(){
				//获取当前的路由参数
				const {query} = this.$route
				// console.log('当前路径上的query',query)
				//跳转路由
				this.$router.push({
					path:'/search',
					query:{
						...query,
						keyword:this.keyword,
					}
				})
			},
			// 退出登录的回调
			handleLogout(){
				if(confirm('确定退出登录吗？')){
					this.$store.dispatch('logout')
				}
			}
		},
		mounted(){
			this.$bus.$on('clear-keyword',()=>{
				this.keyword = undefined
			})
		},
		beforeDestroy(){
			this.$bus.$off('clear-keyword')
		}
	}
</script>

<style lang="less" scoped>
	.header {
		&>.top {
			background-color: #eaeaea;
			height: 30px;
			line-height: 30px;

			.container {
				width: 1200px;
				margin: 0 auto;
				overflow: hidden;

				.loginList {
					float: left;

					p {
						float: left;
						margin-right: 10px;

						.register {
							border-left: 1px solid #b3aeae;
							padding: 0 5px;
							margin-left: 5px;
						}
					}
				}

				.typeList {
					float: right;

					a {
						padding: 0 10px;

						&+a {
							border-left: 1px solid #b3aeae;
						}
					}

				}

			}
		}

		&>.bottom {
			width: 1200px;
			margin: 0 auto;
			overflow: hidden;

			.logoArea {
				float: left;

				.logo {
					img {
						width: 175px;
						margin: 25px 45px;
					}
				}
			}

			.searchArea {
				float: right;
				margin-top: 35px;

				.searchForm {
					overflow: hidden;

					input {
						box-sizing: border-box;
						width: 490px;
						height: 32px;
						padding: 0px 4px;
						border: 2px solid #ea4a36;
						float: left;

						&:focus {
							outline: none;
						}
					}

					button {
						height: 32px;
						width: 68px;
						background-color: #ea4a36;
						border: none;
						color: #fff;
						float: left;
						cursor: pointer;

						&:focus {
							outline: none;
						}
					}
				}
			}
		}
	}
</style>